Hyundai Elantra: Air Conditioning System / PM Sensor
Description and operation
Monitor the air quality inside the vehicle in real time (PM sensor) and display the status on the screen.
Automatically operate when fine dust concentration is high (Condition: Bet mode + A/C ON + 3rd speed or higher)
Components and components location

Repair procedures
1. | Disconnect the negative (-) battery terminal. |
2. | Remove the crash pad air vent [RH]. (Refer to Body (Interior and Exterior) - "Crash Pad Air Vent") |
3. | Loosen the mounting screw and remove the PM sensor (A). 
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4. | Install in the reverse order of removal. •
| Replace any damaged clips |
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| Make sure the connector is connected properly. |
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Description
DescriptionThe auto defogging sensor is installed on the front window glass. The sensor judges and sends signal if moisture occurs to blow out wind for defogging...
Other information:
Function warning and control
Vehicle detection
To warn the driver a vehicle is
detected, the warning light on the
outside rearview mirror will illuminate.
The system will operate when your
vehicle speed is above 12 mph (20
km/h) and the speed of the vehicle in
the blind spot area is above 7 mph (10
km/h).
Collision Warning
Collision warning will operate when
the turn signal is..
Air Bag Warning Light
This warning light illuminates:
• When you place the ignition switch to
the ON position.
-- The air bag warning light illuminates
for about 6 seconds and then turns
off when all checks have been
performed
• The air bag warning light will remain
illuminated if there is a malfunction
with the Safety Restraint System (SRS)
air bag operation.
In this case, have the ve..